Dr. Mark Stein M.D.

Recommended Articles

• Bisphenol A May Lower the Quantity and Quality of Sperm

  A new study has shown that higher levels of bisphenol A (BPA) in urine may lower sperm count and motility in men, affecting their ability to father a child. The results of the study are published in the journal Fertility and Sterility and this is first of its kind to link the levels of BPA to sperm...

• Risk Factors for Testicular Cancer

  Testicular cancer happens when germ cells within the male testicles start reproducing in an uncontrolled manner, resulting in a mass of tissue called a tumor. Germ cells are cells that eventually grow into sperm cells, and germ cell tumors account for more than 98 percent of all cancers affecting...

• Detrusor Muscles and Urination

  It is mostly the detrusor muscle that forms the wall of the bladder, it contracts during urination and relaxes to hold the urine. The muscle is continuous at the inferior end with the internal urethral sphincter. Urination results when the detrusor muscle contracts and the urethral sphincter muscle...

• Kidney Stones: What is Urinary Retention Medication?

  Kidney stones come about from an infection that leads to formation of stone-like structures in the kidney. Kidney stones are made up of different materials, mostly being acidic salts and minerals filtered from the blood by the kidney. These minerals, once filtered from the blood, fail to dissolve...

• What Causes Kidney Stones?

  Kidney stones are a common problem for many people. In the United States, kidney infection cases are usually due to kidney stones increasing in size over time. What Are Kidney Stones?Kidney stones are crystal ball-like substances that form in the urinary tract. These stones are usually found around...

• How Is Bladder Cancer Diagnosed?

  In case you have symptoms of bladder cancer such as the presence of blood in the urine, you should see your doctor immediately. Your doctor will use many tests to possibly diagnose a bladder cancer and will also find out how far it has spread. Sometimes, bladder cancer may have spread to other parts...